// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_TRACK_H_
#define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_TRACK_H_

#include <string>

#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/threading/thread_checker.h"
#include "content/common/content_export.h"
#include "media/base/audio_parameters.h"
#include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"

namespace content {

// MediaStreamTrack is a Chrome representation of blink::WebMediaStreamTrack.
// It is owned by blink::WebMediaStreamTrack as
// blink::WebMediaStreamTrack::ExtraData.
class CONTENT_EXPORT MediaStreamTrack
    : NON_EXPORTED_BASE(public blink::WebMediaStreamTrack::TrackData) {
public:
    explicit MediaStreamTrack(bool is_local_track);
    ~MediaStreamTrack() override;

    static MediaStreamTrack* GetTrack(const blink::WebMediaStreamTrack& track);

    virtual void SetEnabled(bool enabled) = 0;

    virtual void SetContentHint(
        blink::WebMediaStreamTrack::ContentHintType content_hint)
        = 0;

    virtual void Stop() = 0;

    // TODO(hta): Make method pure virtual when all tracks have the method.
    void getSettings(blink::WebMediaStreamTrack::Settings& settings) override { }

    bool is_local_track() const { return is_local_track_; }

protected:
    const bool is_local_track_;

    // Used to DCHECK that we are called on Render main Thread.
    base::ThreadChecker main_render_thread_checker_;

private:
    DISALLOW_COPY_AND_ASSIGN(MediaStreamTrack);
};

} // namespace content

#endif // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_TRACK_H_
